/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.dx.cf.iface;

/**
 * Interface for lists of methods.
 */
public interface MethodList {

	/**
	 * Get whether this instance is mutable. Note that the {@code MethodList}
	 * interface itself doesn't provide any means of mutation, but that doesn't
	 * mean that there isn't a non-interface way of mutating an instance.
	 * 
	 * @return {@code true} iff this instance is somehow mutable
	 */
	public boolean isMutable();

	/**
	 * Get the number of methods in the list.
	 * 
	 * @return the size
	 */
	public int size();

	/**
	 * Get the {@code n}th method.
	 * 
	 * @param n
	 *            {@code n >= 0, n < size();} which method
	 * @return {@code non-null;} the method in question
	 */
	public Method get(int n);
}
